20 Most Recent Sharp XE-A407 - Cash Register - 7000 Plus - 40 Clerks - 99 Departments - Thermal Printing Questions & Answers

Most Sharp registers have a brightness or contrast control but I can't find one listed for this model. Have a look around the edge of the display to see if there is a control. Otherwise, it may be a faulty display if the machine is still working

do an initial reset and restart

Check you keyboard if there isn't any key that is stuck down

If its feeding paper but not printing, make sure that you are using the correct thermal paper and that there is no extra bits of paper stuck under the printing head. Otherwise it might need a replacement printing head. If its not feeding the paper at all, then make sure that the receipt is turned on.

More information required. Please provide the model number of the cash register and the transaction that wont clear?

Initial re-set

Use thermal paper

Its either you are not using the right paper or that paper is upside down if its a thermal printer or just that your printhead is gone